(E)-7-[1-tert-Butyl-6-cyclopropyl-4-(4-fluoro-phenyl)-3-methyl-1H-pyrazolo[3,4-b]pyridin-5-yl]-5-hydroxy-3-oxo-hept-6-enoic acid ethyl ester 在
zinc(II) tetrahydroborate 作用下,
以
乙醚 为溶剂,
生成 (E)-(3S,5R)-7-[1-tert-Butyl-6-cyclopropyl-4-(4-fluoro-phenyl)-3-methyl-1H-pyrazolo[3,4-b]pyridin-5-yl]-3,5-dihydroxy-hept-6-enoic acid ethyl ester